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/netgear-R7000-V1.0.7.12_1.2.5/components/opensource/linux/linux-2.6.36/drivers/media/dvb/frontends/
H A Ddib0090.c442 static void dib0090_gain_apply(struct dib0090_state *state, s16 gain_delta, s16 top_delta, u8 force) argument
448 if (top_delta < -511)
449 top_delta = -511;
450 if (top_delta > 511)
451 top_delta = 511;
454 top_delta *= (1 << WBD_ALPHA);
458 if (top_delta >= ((s16) (state->rf_ramp[0] << WBD_ALPHA) - state->rf_gain_limit)) /* overflow */
461 state->rf_gain_limit += top_delta;

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